bigbluebutton-Github/bigbluebutton-html5/imports/api/whiteboard-multi-user/server/modifiers/modifyWhiteboardAccess.js

import { check } from 'meteor/check';
import Logger from '/imports/startup/server/logger';
import WhiteboardMultiUser from '/imports/api/whiteboard-multi-user/';
import Users from '/imports/api/users';

export default function modifyWhiteboardAccess(meetingId, whiteboardId, multiUser) {
  check(meetingId, String);
  check(whiteboardId, String);
  check(multiUser, Boolean);

  if (!multiUser) {
    const usersSelector = { meetingId, presenter: { $ne: true } };

    const mod = {
      $set: {
        whiteboardAccess: false,
      },
    };

    Users.update(usersSelector, mod, { multi: true }, (err) => {
      if (err) {
        return Logger.error(`Error removing whiteboard access, User collection: ${err}`);
      }

      return Logger.info(`updated Users whiteboardAccess flag=${false} meetingId=${meetingId} whiteboardId=${whiteboardId}`);
    });
  }

  const selector = {
    meetingId,
    whiteboardId,
  };

  const modifier = {
    meetingId,
    whiteboardId,
    multiUser,
  };

  const cb = (err, numChanged) => {
    if (err) {
      return Logger.error(`Error while adding an entry to Multi-User collection: ${err}`);
    }

    const { insertedId } = numChanged;
    if (insertedId) {
      return Logger.info(`Added multiUser flag=${multiUser} meetingId=${meetingId} whiteboardId=${whiteboardId}`);
    }

    return Logger.info(`Upserted multiUser flag=${multiUser} meetingId=${meetingId} whiteboardId=${whiteboardId}`);
  };

  return WhiteboardMultiUser.upsert(selector, modifier, cb);
}